RF Components - Broadcast Devices · RF Components Directional Couplers ... U-Links are made with a lightweight aluminum outer ... A Geneva drive mechanism provides exact 90 degree

Copyright © 2009 Electronics Research, Inc. All rights reserved.Printed in USA (No. 20090321008_AEN01)Your Single Source for Broadcast Solutions™ www.eriinc.com 877 ERI-LINE

RF Components Directional Couplers, Patch Panels, Switches, RF Loads, Waveguide Elbows

Complete Line of RF Components

ERI has decades of expertise and experience in engineering and designing high quality RF components. For this reason, broadcasters, both within the U.S. and around the world, turn to ERI for their most demanding applications.

ERI’s Line of RF Components includes:Directional Couplers•Patch Panels•Coaxial Loads•Waveguide Loads•Coaxial Motorized Switches•Waveguide Motorized Switches•Waveguide Elbows and Mitres•



CD Series

VHF-UHF CouplersERI CD Series VHF/UHF Adjustable Directional Couplers are designed and manufactured to cover 50 MHz to 860 MHz with a broad coupling range and corresponding directivity, all within one of the smallest packages in the broadcast industry. The coupling loop provides high accuracy in forward and/or reflected power measurements necessary for determining VSWR, component or system losses, line power, or other operations. Etched angle and penetration scales provide ease and accuracy in measuring coupling values across the FM/VHF/UHF frequency bands. Nominal Directivity is at least 30 dB and typical values of directivity can be significantly higher upon final adjustment. These couplers can be implemented in any of the standard coaxial line sizes. Single, dual, triple, and quad couplers are also available.

Saddle type field install couplers are also available with the same functionality and performance as the ERI CD Series VHF/ UHF Adjustable Directional Couplers.

Common Features-30 to -70 dB Coupling Range•1.03:1 or better VSWR•30 dB or better Directivity•50 to 860 MHz Frequency Range•50 ohms Impedance•

VHF-UHF Adjustable Directional CouplersPart Number Connector Size # of Ports

CD208-N 1-5/8” EIA, N Female 1








CD408-N 4-1/16”, N Female 1

CD409-N 4-1/16”, N Female 2

CD410-N 4-1/16”, N Female 3

CD411-N 4-1/16”, N Female 4





VHF-UHF Saddle Type Field Install CouplersPart Number Coax Size # of Ports

CD314-N 3-1/8” 1

CD414-N 4-1/16” 1

CD614-N 6-1/8” 1



FM, VHF, and UHF Patch Panels

Broadcast system designers and engineers can select a coaxial patch panel to best match their system performance and budget requirements with a choice of two patch panel options from ERI.

For systems where cost savings is a dominant factor, ERI offers its lower cost Dura-Patch Coaxial Patch Panel. This patch panel offers the same quality and RF performance that broadcasters have come to expect from ERI patch panels, but at much lower cost. Using the traditional “hose clamp” U-Link capturing system, the Dura-Patch Coaxial Patch Panel offers a quality solution for manual transmitter/ antenna/load or any other RF routing needs that a broadcaster may have.

For systems requiring premium performance, ERI provides the Quick Patch Coaxial Patch Panel. Known for its unique U-Link release and capture system, the Quick Patch Coaxial Patch Panel offers the easiest and quickest U-Link remove and replace action in the industry.

Part Number Size # of Ports

QUICK-Patch Patch Panels - FlangedCP235-EIA 1-5/8” 3CP245-EIA 1-5/8” 4CP255-EIA 1-5/8” 5CP275-EIA 1-5/8” 7CP335-EIA 3-1/8” 3CP345-EIA 3-1/8” 4CP355-EIA 3-1/8” 5CP375-EIA 3-1/8” 7CP435-EIA 4-1/16” 3CP445-EIA 4-1/16” 4CP455-EIA 4-1/16” 5CP475-EIA 4-1/16” 7CP635-EIA 6-1/8” 3CP645-EIA 6-1/8” 4CP655-EIA 6-1/8” 5CP675-EIA 6-1/8” 7

QUICK-Patch Patch Panels - UnflangedCP235-0NF 1-5/8” 3CP245-0NF 1-5/8” 4CP255-0NF 1-5/8” 5CP275-0NF 1-5/8” 7CP335-0NF 3-1/8” 3CP345-0NF 3-1/8” 4CP355-0NF 3-1/8” 5CP375-0NF 3-1/8” 7CP435-0NF 4-1/16” 3CP445-0NF 4-1/16” 4CP455-0NF 4-1/16” 5CP475-0NF 4-1/16” 7CP635-0NF 6-1/8” 3CP645-0NF 6-1/8” 4CP655-0NF 6-1/8” 5CP675-0NF 6-1/8” 7

DURA-Patch Patch Panels - FlangedCPLC235-EIA 1-5/8” 3CPLC245-EIA 1-5/8” 4CPLC255-EIA 1-5/8” 5CPLC275-EIA 1-5/8” 7CPLC335-EIA 3-1/8” 3CPLC345-EIA 3-1/8” 4CPLC355-EIA 3-1/8” 5CPLC375-EIA 3-1/8” 7CPLC435-EIA 4-1/16” 3CPLC445-EIA 4-1/16” 4CPLC455-EIA 4-1/16” 5CPLC475-EIA 4-1/16” 7CPLC635-EIA 6-1/8” 3CPLC645-EIA 6-1/8” 4CPLC655-EIA 6-1/8” 5CPLC675-EIA 6-1/8” 7

DURA-Patch Patch Panels - UnflangedCPLC235-0NF 1-5/8” 3CPLC245-0NF 1-5/8” 4CPLC255-0NF 1-5/8” 5CPLC275-0NF 1-5/8” 7CPLC335-0NF 3-1/8” 3CPLC345-0NF 3-1/8” 4CPLC355-0NF 3-1/8” 5CPLC375-0NF 3-1/8” 7CPLC435-0NF 4-1/16” 3CPLC445-0NF 4-1/16” 4CPLC455-0NF 4-1/16” 5CPLC475-0NF 4-1/16” 7CPLC635-0NF 6-1/8” 3CPLC645-0NF 6-1/8” 4CPLC655-0NF 6-1/8” 5CPLC675-0NF 6-1/8” 7

Both the Dura-Patch and Quick Patch Coaxial Patch Panel U-Links are made with a lightweight aluminum outer conductor and high conductivity copper inner conductor. Double pole, double throw (DPDT) interlock switches are options for both styles.

Common Features<1.04:1 VSWR•90% of line size Power Rating•FM,VHF, UHF Frequency Range•50 ohms Impedance•



CS Series

FM, VHF, and UHFCoaxial Motorized SwitchesERI CS series coaxial motorized switches are designed for operation within FM,VHF, and UHF broadcast systems. The switches are engineered to provide high capability and long life. A Geneva drive mechanism provides exact 90 degree rotation of the contacts. The switch drive can be powered by either 115 VAC or 230 VAC. Control voltage can be either 12 VDC or 24 VDC. Manual operation is provided via a hex drive Tee Wrench through a hole in the switch case. If power to the drive is interrupted, the control circuit provides involatile memory so that the switch either holds its position or continues its transition upon re-application of AC power.

Common Features50 ohms Impedance•0.06 dB Max. Insertion Loss•60 dB Min. Isolation•

CS Series FM and VHF Coaxial Motorized Transfer Switches

Part Number Size # of Ports VSWRPower Rating Shorting Cap

Part Number**Peak Average (25 MHz) Average (250 MHz)

CS250-XYY* 1-5/8” 4** <1.03:1 165 kW 30 kW 9 kW CS008

CS350-XYY* 3-1/8” 4** <1.03:1 300 kW 55 kW 28 kW CS009

CS450-XYY* 4-1/16” 4** <1.03:1 500 kW 125 kW 40 kW CS011

CS650-XYY* 6-1/8” 4** <1.03:1 1000 kW 250 kW 100 kW FF145

CS Series UHF Coaxial Motorized Transfer Switches

Part Number Size # of Ports VSWRPower Rating Shorting Cap

Part Number**Peak Average (250 MHz) Average (806 MHz)

CS252-XYY* 1-5/8” 4** <1.05:1 165 kW 9 kW 4 kW CS008

CS352-XYY* 3-1/8” 4** <1.05:1 300 kW 28 kW 7 kW CS009

CS452-XYY* 4-1/16” 4** <1.05:1 500 kW 40 kW 20 kW CS011

**X indicates first number in drive voltage - 1=115 VAC 2=230 VAC. YY indicates control voltage - 12=12 VDC 24=24 VDC**For 3 Port Configuration, add Shorting Cap



WS Series

Waveguide Motorized SwitchesERI WS series Waveguide motorized switches are designed for operation within UHF broadcast systems. The switches are engineered to provide high capability and long life. A Geneva drive mechanism provides exact 90 degree rotation of the contacts. The switch drive can be powered by either 115 VAC or 230 VAC. Control voltage can be either 12 VDC or 24 VDC. Manual operation is provided via a 9/16” socket head that is accessible through a hole in the switch case. If power to the drive is interrupted, the control circuit provides involatile memory so that the switch either holds its position or continues its transition upon re-application of AC power.

Common Features<1.03:1 VSWR (Single Channel)•240 Kw Average Power Rating•50 ohms Impedance•0.06 dB Max. Insertion Loss•70 dB Min. Isolation•

WS Series UHF Waveguide Motorized Transfer SwitchesPart Number Waveguide Size Plane Frequency Range

WS104 WR1150 E 640-860 MHz

WS106 WR1150 H 640-860 MHz

WS503 WR1500 E 490-700 MHz

WS508 WR1500 H 490-700 MHz

WS801 WR1800 E 470-625 MHz

NOTE: Consult ERI for Higher Power Ratings



CL Series

UHF Coaxial LoadsERI CL Series UHF Coaxial Loads offer a proven design for handling high power at low cost. The load employs a solution of glycol and water as both coolant and resistive material. The power dissipated by the load heats the solution and is removed by the coolant’s constant flow. The loads are extremely rugged since the resistor is liquid and no finger contacts are used. A dielectric transformer on the inner conductor distributes power evenly throughout the coolant and provides excellent thermal stability over a wide range of temperature and power levels. The loads can be furnished with ERI replaceable element dual directional couplers upon request.

Common Features1:05:1 VSWR (Any TV Channel)•1.20:1 VSWR (470-860 MHz)•3/4” NGH or 3/4” NPT Coolant Connections•80 psi Coolant Pressure*•10% to 50% Glycol/Water Coolant Mixture**•

UHF High Power Coaxial Water LoadsPart Number Connector Size Peak Power Average Power

CL301 3-1/8” EIA 500 kW 50 kW

CL401 4-1/16” EIA 1500 kW 70 kW

CL601 6-1/8” EIA 2000 kW 100 kW

00 5 10

Pressure Drop (lb/in )

Pressure Gradient

Cool

ant F

low

Rat

e (G

PM)

15 20 25

10

20

30

40

50

2

* 35

30

25

20

15

10

550 75 100 125 150

50% glycol

Average Power (kW)

Cool

ant F

low

Rat

e (G

PM) ∆ T = 60 F

10% glycol

175 200

**



WL Series

UHF Waveguide LoadsERI uniquely designed tapered Waveguide water loads utilize a technique involving two coaxial dielectric tubes that carry the water/glycol solution (which functions as a heat dissipater and RF absorber). The WL Series provides an efficient and low cost method for dissipating unwanted RF. As an option, a tuning section may be added. Any combination of coolant inlet and outlet adapters is available as well.

Common Features240 kW Peak Power•1:05:1 VSWR (Any TV Channel)•1.20:1 VSWR (470-860 MHz)•Coolant Connections•Inlet 3/4” or 1” NPTF•Outlet 3/4” or 1” NPTF•80 psig Max. Coolant Pressure*•10% to 50% Glycol/Water Coolant Mixture**•

WL Series Waveguide LoadsPart Number Waveguide Size Channel Range

WL111 WR1150 40-69

WL511 WR1500 14-19

WL512 WR1500 20-29

WL513 WR1500 30-39

WL514 WR1500 40-49

WL811 WR1800 14-19

00 5 10

Pressure Drop (lb/in )

Pressure Gradient

Cool

ant F

low

Rat

e (G

PM)

15 20 25

10

20

30

40

50

2

*35

30

25

20

15

10

550 75 100 125 150

50% glycol

Average Power (kW)

Cool

ant F

low

Rat

e (G

PM) ∆ T = 60 F

10% glycol

175 200

**



WE Series

Waveguide Elbows-Mitres (Unpressurized)ERI manufactures a number of Waveguide components. Among them are E-plane and H-Plane elbows available in WR1150,WR1500, and WR1800 sizes.

Contact ERI for information on our Waveguide fixed couplers, Waveguide fine matchers, and the rest of our waveguide components.

WE SeriesPart Number Waveguide Size Plane Size

WE105 WR1150 H 12 x 12

WE106* WR1150 E 9 x 9

WE110** WR1150 H 16 x 16

WE505 WR1500 H 12 x 12

WE506† WR1500 E 9 x 9

WE524‡ WR1500 H 18 x 18

WE801 WR1800 E 12 x 12

WE802 WR1800 H 18 x 18

WE809§ WR1800 E 8.5 x 8.5

**This is a one for one replacement for Waveguide Switch WS104.**This is a one for one replacement for Waveguide Switch WS106. †This is a one for one replacement for Waveguide Switch WS503. ‡This is a one for one replacement for Waveguide Switch WS508. §This is a one for one replacement for Waveguide Switch WS801.


Antennas | Transmission Line | Filters/Combiners | Towers | Broadcast Services

Around the World, Across the Spectrum,Your Single Source For Broadcast Solutions

About Electronics Research, Inc.Founded in 1943, Electronics Research, Inc. delivers high quality, innovative, integrated solutions to broadcasters across the U.S. and around the world. Our dedicated staff of engineers, designers, fabricators, and project managers take pride in contributing to your success by providing AM, FM, VHF, UHF, BRS-EBS, and Mobile Media broadcast systems including the industry’s best antenna, transmission line, filter and combining, and tower and structural support systems. In addition to manufacturing the full range of broadcast system components and installation accessories, ERI offers all of the engineering and field services needed to plan, install, optimize, and maintain your broadcast facility. We are your single source for broadcast solutions.

Broadcast Antenna SystemsROTOTILLER® FM Radio Antenna•

LYNX™ Dual Input for IBOC FM Radio Antenna•

1105 Circularly Polarized FM Radio Antenna•

100 Low Power Circularly Polarized FM Radio Antenna•

FM Low Power Horizontally Polarized Educational FM Radio •Antenna

P300/P350 Series Vertically Polarized FM Radio Antenna•

1180 and 1090 Series Broadband Panel FM Radio Antenna•

SLIMWING™ Batwing VHF Television Antenna•

CRUCIS™ Crossed Dipole VHF Television Antenna•

STINGRAY™ Broadband Panel VHF Television Antenna•

TRASAR® High Power Traveling Wave Television Antenna•

AGW Guided Wave Quick-Deploy Emergency UHF Television •Antenna

STINGRAY™ Broadband Panel UHF Television Antenna•

ALP Low and Medium Power UHF Television Antenna•

AL PLUS Low and Medium Power UHF Television Antenna•

AL8 Low Power UHF Television Antenna•

VELA™ Low Power Vertically Polarized Broadband UHF Television •Antenna

HMD BRS-EBS Antenna•

SHADOWMASTER® Shadow-Filling BRS-EBS Antenna•

Transmission Line SystemsMACXLine® Rigid Transmission Line with Bellows•

HELIAX® Air- and Foam-dielectric Coaxial Cable•

HELIAX® Standard Elliptical Waveguide•

GUIDELine® Circular Waveguide•

Standard Rectangular Waveguide•

Dehydrators and Pressurization Equipment•

Filter and Combining SystemsFM Radio Filter and Combining Systems•

UHF and VHF Television Filter and Combining Systems•

DAB Filter and Combining Systems•

Mobile Media Filter and Combining Systems•

RF Components•

System Monitoring and Protection Components•

Structural Support SystemsGuyed Towers•

Self-Supporting Towers•

Roof-top Antenna Support Structures•

Specialty Structures and Custom Antenna Supports•

RF and Structural System ServicesRF Field and Engineering Services•

Installation and Structural Engineering Services•

Electronics Research, Inc.7777 Gardner RoadChandler, Indiana 47610-9219 USA

877 ERI-LINE (toll-free: North America)www.eriinc.com (web)+1 812 925-6000 (international)+1 812 925-4030 (fax)

All designs, specifications, and availabilities of products and services presented in this publication are subject to change without notice.

Documents

RF Components - Broadcast Devices · RF Components Directional Couplers ... U-Links are made with a lightweight aluminum outer ... A Geneva drive mechanism provides exact 90 degree